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  7. d4 7u17432 transmission issues

d4 7u17432 transmission issues

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1 year 7 months ago #247258 by dflect1
Replied by dflect1 on topic d4 7u17432 transmission issues
      O K today got seat fenders linkages removed soaking in diesel will pressure wash tomorrow and try to remove cover.
is it possible to take out clutch assembly without pulling engine ?
while flushing i discover a thick washer 1/4" thick wth a tapper on one edge layin in pan .
here are sum photos maybe
notice the case picture you can see  bearing not in housing.
will the cover come off without removing pony flywheel?
Thanks for the help  Derek

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1 year 7 months ago #247259 by dflect1
Replied by dflect1 on topic d4 7u17432 transmission issues
I am also looking for the correct parts manual with removal and assembly instructions is this the correct one? 
Attachments:

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1 year 7 months ago - 1 year 7 months ago #247263 by D4Jim
Replied by D4Jim on topic d4 7u17432 transmission issues
That manual will give you parts only and no instructions. You will also need a service manual (Serviceman's Reference Book) for instructions on disassembly and service for the Caterpillar D4 Tractor. . It is about 170 pages for the service manual. I do not know if there is an additional tranny manual similar to the ones for the road graders but there is quite an extensive bit about transmissions in the D4 Tractor Service Manual.
If possible look for Caterpillar manuals as the Jensales manuals are notorious for poor reprint quality and legibility.

This is the only one I saw on eBay  134038636611
 
ACMOC Member 27 years
D47U 1950 #10164
Cat 112 1949 #3U1457
Cat 40 Scraper #1W-5494
Last edit: 1 year 7 months ago by D4Jim.

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1 year 7 months ago #247264 by trainzkid88
Replied by trainzkid88 on topic d4 7u17432 transmission issues
looks like that bottom shaft crystallised and then it broke.

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1 year 7 months ago - 1 year 7 months ago #247267 by kracked1
Replied by kracked1 on topic d4 7u17432 transmission issues
dflect1 you do have to remove the pony flywheel. Also do not forget to unhook the shift interlock linkage inside the bellhousing. It is just a couple cotter pins and a rod. But will make a mess if not unhooked. That is the only "hidden" thing that will bite you when removing the cover. I just had mine off in July to replace a bearing. It is also a very good time to check to check the rear bearing on the pony crank and replace the seal if it leaks at all. Also if you havent noticed, your tracks are on backwards.
Last edit: 1 year 7 months ago by kracked1. Reason: added info

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1 year 7 months ago - 1 year 7 months ago #247270 by gauntjoh
Replied by gauntjoh on topic d4 7u17432 transmission issues
Hi deflect1,
Whilst it is not the best copy in the world, there is a copy of a Serviceman's Reference manual for D7 7U in the technical library which you may find useful.
Many have said that the $44 annual membership fee is well worth it for access to the library let alone the wealth of experience and advice that people freely give on this forum.

 
John Gaunt, ACMOC Director, UK
Attachments:
Last edit: 1 year 7 months ago by gauntjoh.
The following user(s) said Thank You: kracked1

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1 year 7 months ago #247276 by dflect1
Replied by dflect1 on topic d4 7u17432 transmission issues
thanks everyone for the input would not even attempt this without these forums
this manual posted above is the book posted on web sight for membership fee correct?
how is the best way to bind up pony flywheel for removal? could i run some cotton rope
inside cylinder bore like you do with a chainsaw to remove flywheel?
THanks

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1 year 7 months ago #247278 by juiceman
Replied by juiceman on topic d4 7u17432 transmission issues
A good impact gun and proper sized socket should knock the nut off; An old school method is to use a chisel and hammer if power tools are not available. Crude, but effective.
I never had to "bind" the pony, but you could possibly engage the pinion/pony clutch. JM

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1 year 7 months ago #247279 by gauntjoh
Replied by gauntjoh on topic d4 7u17432 transmission issues
The screenshot I posted is of the manual which is in the members library.
You have to be a member to be able to see it. You can buy a membership through the store on this website
Store - Antique Caterpillar Machinery Owners Club (acmoc.org)
Basic membership is $44 and it is extra if you want a hard copy of the magazine.
You will have access to all recent magazines through the members area of the website included in the basic membership.
Whilst it's not possible (for legal reasons) to download a copy of documents in the library, you can make screen prints of individual pages if you wish to take into your workshop so you don't get greasy black finger prints on your hard copy (if you have one)!
John Gaunt, ACMOC Director, UK
The following user(s) said Thank You: nielske

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1 year 7 months ago #247281 by dflect1
Replied by dflect1 on topic d4 7u17432 transmission issues
yes the chisel trick is obvious because this nut is totally mangled.
I probable have required puller, do you really have to bear down on these?
probably can use heat either because of seals ?
Thanks

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  7. d4 7u17432 transmission issues
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